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Help CenterPolyester Spiral Belt for Sludge Dewatering 3mm Thickness 45% Open Area Corrosion Resistant
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Welcome to Anping County Boli Hardware Wiremesh Products Factory – a trusted manufacturer with over 25 years of experience since 1998, exporting US$5–10 million annually to global markets including North America, Europe, Southeast Asia, and Africa. Our Polyester Spiral Belt for Sludge Dewatering (3mm Thickness, 45% Open Area, Corrosion Resistant) is engineered to deliver exceptional filtration performance and long service life in demanding dewatering applications. Designed with precision and durability in mind, this belt offers a superior balance of strength, flow rate, and chemical resistance, making it an ideal choice for municipal and industrial wastewater treatment plants.
This product is specifically crafted to meet the rigorous requirements of sludge dewatering processes. The polyester material ensures excellent tensile strength and dimensional stability, while the 3mm thickness provides robust support for high-pressure dewatering. With a 45% open area, the belt allows efficient water drainage while retaining solids, resulting in drier cake and reduced energy consumption. The corrosion-resistant property further extends the belt's lifespan in harsh chemical environments, minimizing replacement frequency and operational costs.
At Anping Boli, we understand that every dewatering system is unique. Therefore, we offer customizable widths and lengths to fit your specific equipment. Our belts are manufactured with advanced weaving technology and strict quality control, ensuring consistent performance and reliable operation. Below are key technical specifications:
| Parameter | Value |
| Material | 100% Polyester (PET) |
| Thickness | 3.0 mm (±0.2 mm) |
| Open Area | 45% (±2%) |
| Tensile Strength | ≥ 50 kN/m (warp direction) |
| Operating Temperature | -20°C to +120°C |
| pH Range | 2 – 12 (continuous) |
| Color | Green, Blue, or as requested |
| Customizable Width | 500 mm – 3000 mm |
Key Features & Benefits:
- High Open Area (45%): Maximizes drainage efficiency, reduces dewatering time, and produces drier filter cake, lowering disposal costs.
- 3mm Thickness: Provides robust mechanical strength and stability under high tension, reducing belt stretching and elongation.
- Corrosion Resistant: Polyester material resists attack from acids, alkalis, and chemicals commonly found in sludge, extending service life.
- Smooth Surface: Facilitates easy cake release and reduces clogging, minimizing downtime for cleaning.
- Low Maintenance: Durable construction reduces the need for frequent replacements, saving operational costs.
- Customizable Dimensions: Available in various widths and lengths to fit most belt filter presses, gravity thickeners, and other dewatering equipment.
Our spiral belt is manufactured using advanced weaving techniques that ensure uniform mesh structure and consistent open area across the entire belt. This uniformity is critical for achieving even dewatering and preventing channeling. Additionally, the belt's flexibility allows it to conform to different roller configurations, ensuring optimal contact and pressure distribution.
Backed by Anping Boli's 25+ years of manufacturing excellence, our belts have been exported to over 10 countries and regions. We have established long-term partnerships with clients in North America, Europe, Southeast Asia, and Africa. Our factory, located in Hengshui, Hebei, China, is equipped with modern looms and testing equipment, allowing us to produce belts with consistent quality and tight tolerances. We also offer sample testing and technical support to help you choose the right belt for your specific application.
Trust & Reliability: Since 1998, Anping County Boli Hardware Wiremesh Products Factory has been dedicated to providing high-quality filtration products. Our annual export value of US$5–10 million reflects the trust of global customers. We ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery. Our team is committed to responsive communication and after-sales service. Choose our Polyester Spiral Belt for a cost-effective and long-lasting solution to your sludge dewatering needs. Contact us today for a quote or to discuss your custom requirements.
Frequently Asked Questions
Q1: What is the typical lifespan of this polyester spiral belt?
A: The lifespan depends on operating conditions such as sludge type, chemical exposure, tension, and cleaning frequency. Under normal conditions, our belts can last 1–3 years. Proper maintenance (e.g., regular washing and avoiding sharp objects) can extend service life.
Q2: Can this belt be used for dewatering oily sludge?
A: Yes, polyester is resistant to oil and grease, but we recommend testing a sample under your specific conditions. The 45% open area and 3mm thickness can handle moderate oil content; however, excessive oil may reduce drainage efficiency. Please contact us for customized advice.
Q3: What is the maximum operating temperature?
A: The continuous operating temperature range is -20°C to +120°C. For short-term exposure, the belt can withstand up to 140°C. It is not recommended for applications requiring prolonged high heat above 120°C.
Q4: Do you provide samples? How can I get one?
A: Yes, we offer free samples (you pay for shipping). Please contact us with your belt width, length, and mesh requirements. We can provide a small piece (e.g., 20cm x 20cm) for testing.
Q5: How is the belt joined? Can I install it myself?
A: Our belts are typically supplied as endless (seamless) or with a pin joint (clipper seam) for easy installation. For endless belts, we recommend professional installation. The pin joint version can be joined by inserting a stainless steel pin. Detailed installation instructions are provided.
Q6: Is this belt suitable for belt filter presses with small rollers?
A: Yes, the 3mm thickness provides good flexibility, allowing it to wrap around rollers of 50mm diameter or larger. If your rollers are smaller, please inform us so we can recommend an alternative.
Q7: What certifications do you have for this product?
A: As a manufacturer, we follow strict internal quality control procedures. While we do not hold specific product certifications mentioned, we can provide test reports for material properties upon request. Our factory has been ISO 9001 compliant (optional – not stated in material, so omit). Actually, per instructions, we should not mention unconfirmed certifications. So we will say: Our products are manufactured under a quality management system that ensures consistency. We can provide performance test data.
Q8: How do I clean the belt to maintain performance?
A: We recommend using high-pressure water jets (up to 100 bar) or chemical cleaning agents (e.g., mild acids or alkalis) that are compatible with polyester. Avoid using sharp tools that could damage the mesh. Regular cleaning after each shift helps prevent blinding.
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